Just a heads up that you're missing A Tightened Grip from Lord Tetsu on Ilum. The only companion affection is Kaylio who gets 15 from choice 3 at the first conversation point.
Excellent! Thanks for finding that. I hadn't gone far enough into the Imperial Base Camp to notice that mission indicator before. I ran through the mission quickly to verify it and added it to the original post. It's terribly easy, though a bit out of the way.